255623164 has 24 divisors (see below), whose sum is σ = 455817600. Its totient is φ = 125398320.

The previous prime is 255623153. The next prime is 255623183. The reversal of 255623164 is 461326552.

255623164 = 77² + 78² + ... + 915².

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197359 + ... + 198649.

It is an arithmetic number, because the mean of its divisors is an integer number (18992400).

Almost surely, 2^255623164 is an apocalyptic number.

It is an amenable number.

255623164 is a deficient number, since it is larger than the sum of its proper divisors (200194436).

255623164 is a wasteful number, since it uses less digits than its factorization.

255623164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193 (or 2191 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 255623164 is about 15988.2195381475. The cubic root of 255623164 is about 634.6487105696.

The spelling of 255623164 in words is "two hundred fifty-five million, six hundred twenty-three thousand, one hundred sixty-four".